Box for circuit boards



FIG. 1 is a top, front and end perspective view of a box for circuit boards showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof, the rear view being identical; and

FIG. 5 is an end elevational view thereof, the other end being identical. 

The ornamental design for a box for circuit boards, as shown and described. 